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ameen.ahmed
Beginner

Maximum possible ISDN calls?

Dear Friends,

What is the maximum possible ISDN calls on Cisco 7206VXR router using PRI links and PRI supported cards.

Thanks,

Ameen Ahmed.

7 REPLIES 7
paolo bevilacqua
Hall of Fame Master

Do you have the router and the cards, or your is only a hipotetical question ?

Do you refer to voice or data calls ?

In other words, what are yting to do, in reality ?

Hi Paolo,

I'm talking about data calls.. as backup link..

The 7206VXR router is at central site.. Its connected to more than 1500 banch locations.

I've dedicated links to all braches, and now i want to configure backup links of 64kbps to each brach..

PRI links are available.. I can buy any type of cards for 7206VXR..

I want to know what is the maximus calls supprted by my router with any card..

Thanks..

With 6x PA-MC-8TE1+ you should be able to support 1440 calls, theoretically.

What will require NPE-G1 or G2.

However for many good reasons, you shoudl balance the load across multiple routers.

I too was thinking in that way.. but, practically we can't configure more than 4 PRI on the card, i think so.. again whether the router will support it or not.. these are my doubts..

Which exact card do you have as seen from "show diag" ?

In any card which have 8 E1/T1 ports.. we can configure only four of them as PRI channels.. the rest can only be configured as a dedicated E1 or T1 line.. i've not checked this.. i've heard this from one engineer.. i want to know the details..

That is true for certain cards and not for others, specifically the one I have mentioned before.

That is why I asked you to mention what you have.

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